- Volume 14 Issue 10
DOI QR Code
Group-based Cache Sharing Scheme Considering Peer Connectivity in Mobile P2P Networks
모바일 P2P 네트워크에서 피어의 연결성을 고려한 그룹 기반 캐시 공유 기법
- 김재구 (충북대학교 정보통신공학부) ;
- 윤수용 (충북대학교 정보통신공학부) ;
- 임종태 (충북대학교 정보통신공학부) ;
- 이석희 (동아방송예술대학교 뉴미디어콘텐츠과) ;
- 복경수 (충북대학교 정보통신공학부) ;
- 유재수 (충북대학교 정보통신공학부)
- Received : 2014.08.19
- Accepted : 2014.09.11
- Published : 2014.10.28
Recently, cache sharing methods have been studied in order to effectively reply to user requests in mobile P2P networks. In this paper, we propose a cache sharing scheme based on a cluster considering the peer connectivity in mobile P2P networks. The proposed scheme shares caches by making a cluster that consists of peers preserving the connectivity among them for a long time. The proposed scheme reduces data duplication to efficiently use the cache space in a cluster. The cache space is divided into two parts with a data cache and a temporary cache for a cache space. It is possible to reduce the delay time when the cluster topology is changed or the cache data is replaced utilizing a temporary cache. The proposed scheme checks the caches of peers in a route to a cluster header and the caches of one-hop peers in order to reduce the communication cost. It is shown through performance evaluation that the proposed scheme outperforms the existing schemes.
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